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[texts]73 Magazine (January 1991)
73 Magazine January 1991 (#364) High Precision Frequency Standard - Use your TV set as a laboratory standard ...... Johnson 9 Scrounger's Guide to Recycled Electronics - Discover a gold mine of inexpensive parts ...... W5FG 22 An HF/VHF/UHF Marker Generator - Get on frequency for less than $10 ...... K84ZGC 27 A Parallel Port I/O Board - Control your world! ...... VE6BGL 29 The Three-Terminal Regulator - Multiple uses in one package ........
Keywords: radio; amateur; antenna; mhz; frequency; ham; output; tor; amateur radio; radio today; ham radio; feedback card; power supply; center conductor; rose parade; radio club
Downloads: 3,555
[texts]73 Magazine (June 1981)
73 Magazine June 1981 (#249) Repeater at 102,000 Feet! - Canadian hams go up, up, and away ...... VE4FK 12 Digital Control for the Ham III Rotor - good-bye manual switching!...... WA0PBQ 18 Review: The Doppler Systems DDF-3003 - a review of the latest in direction-finding equipment from Doppler Systems ...... KA1LR 28 DF Breakthrough! - the "turkey" tracker we've all been waiting for ...... W7BEP 32 The History of Ham Radio - part XV ........
Keywords: amateur; radio; antenna; mhz; frequency; power; magazine; fcc; ham; amateur radio; power supply; type acceptance; toll free; front panel; radio club; teur radio; ham radio; radio service
Downloads: 2,707
[texts]73 Magazine (December 1983)
73 Magazine December 1983 (#279) Code Practice: Have You Seen the Light? - This simple cpo is the best weekend project under the sun -or bulb ...... Davidson 10 Unlimited Guarantee for Power Supplies - Plan for the worst and you'll get the best, says KC0EW. He might be right ...... KC0EW 20 PC Boards in a Flash! - Make circuit boards without expensive equipment. All you need is a light and a fast switch hand ........
Keywords: antenna; amateur; mhz; radio; ham; output; tor; magazine; power; frequency; amateur radio; power supply; ham radio; front panel; antenna tuner; toll free; qsl cards; radio club; radio amateur; circuit board
Downloads: 4,093
[texts]73 Magazine (April 1993)
73 Magazine April 1993 (#391) Mini-Quad Loops - Three-fifths-size loops with full-size performance ...... NH6XK 10 Copper Dual-Band Super J-Pole Antenna - Build it in less than an hour ...... KA0NAN 12 HR2510 Hi-Power Modrtication - Increase the performance of this popular HF rig ...... Merrill 17 10 Meter X-Beam - Upgrade your antenna as well as your license ...... N5SJZ 18 Lightweight, Collapsible Quad for 2 Meters - Excellent performance in a small package ........
Keywords: radio; amateur; antenna; mhz; ham; frequency; tor; amateur radio; radio today; ham radio; packet radio; flea market; surface mount; card circle; matching case
Downloads: 2,681
[texts]73 Magazine (November 1990)
73 Magazine November 1990 (#362) The Roll-Up 10-20 Antenna - Just right for portable QRP ...... WV8R 12 Working the World with 2 Milliwatts - The ultimate QRP challenge ...... KI6DQ 14 The FIRE-BALL QRP Rig - 50 milliwatts of pure power ...... WB8ELK 18 The Firecaler Milliwattmeter - Calibrate your mini-QRP rig ...... WB0ESV 22 The Smoke Detector Receiver - Turn the FIRE-BALL into a complete transceiver ........
Keywords: radio; amateur; antenna; mhz; ham; repeater; meter; power; amateur radio; radio today; feedback card; ham radio; power supply; front panel
Downloads: 3,146
[texts]73 Magazine (November 1978)
73 Magazine November 1978 (#218) Electro Sculpture - be a radio Rodin ...... VP2DN 32 The SUMSUE Method - determining code speeds ...accurately ...... K1RH 36 The UART Gear Shifter - for multi-speed RTTY ...... KB8CE 38 Silence Groaning Refrigerators - check your house wiring ...... K4KI 42 Bargain Preamp - muliple uses for this one ...... W5REZ 44 Murphy's Masterpiece - the lost weekend ...... WA6PPZ 48 How About Some Holm Shack Safety? - don't be a statistic ........
Keywords: mhz; frequency; output; amateur; power; circuit; meter; receiver; khz; antenna; amateur radio; power supply; frequency counter; toll free; front panel; time base; printed circuit; power supplies; ham radio; call toll
Downloads: 2,767
[texts]73 Magazine (January 1979)
73 Magazine January 1979 (#220) The Italian Freq Generator - from Bologna to you ...... K7YZZ 24 Happiness is a WE-800 - proud owner loves his Wilson ...... K3JML 28 Explore the World of VLF - with this simple converter ...... W3QVZ 32 The S.H.A.F.T. - special tuning gadget for sightless hams ...... K5CW 34 A Remotely-Tuned Matchbox - ultimate operating ease ...... W4PSJ 38 Diodes of the Dead - eavesdrop on the great beyond ........
Keywords: mhz; frequency; antenna; output; amateur; radio; electronics; meter; circuit; amateur radio; power supply; toll free; front panel; frequency counter; time base; call toll; square wave; access code
Downloads: 3,457
[texts]73 Magazine (January 1982)
73 Magazine January 1982 (#256) Egad! A Nine-Tube Linear - results from the W7CSD test bed ...... W7CSD 12 Drama on Mt. McKinley - ice, snow, and amateur radio ...... W7KUF 18 The Simplex Autopatch - a telephone interface for everyone's two-meter rig! ...... WA7VZR 26 The Cheapskate - a checker for bargain diodes ...... K9QLL 30 Constant Current from a Voltage Regulator ...... WA4WDL 39 The Hesitator: A Windshield Wiper Control - a rainy day project ........
Keywords: amateur; mhz; antenna; frequency; radio; output; power; signal; satellite; amateur radio; power supply; hewlett packard; toll free; packard hewlett; signal generator; ham radio; front panel; call toll
Downloads: 3,494
[texts]73 Magazine (March 1991)
73 Magazine March 1991 (#366) Packet with the Microsats - The secrets of success ...... KI6QE 9 Weather Satellite Reception - Dust off your unused scanner ...... N6NHP 12 The Desert Voices Project - An overnight success story ...... KA1UKM 18 Elementary Mode S - Satellite fun on 2.4 GHz-the easy way! ...... KA9LNV 21 Touch-Tone Activated Scanner - So you won' t miss a call! ...... AA7Y 30 Two Meter EME Primer - Your guide to moonbounce action! ........
Keywords: amateur; radio; antenna; mhz; ham; eme; frequency; amateur radio; radio today; feedback card; ham radio; power supply; desert voices; flea market; weather satellite
Downloads: 2,347
[texts]73 Magazine (February 1982)
73 Magazine February 1982 (#257) The Fun-Oscillator - a simple, goof-proof vfo for your QRP transmitter ...... WA0RBR 12 Build this Antennalyzer - you'll need a weekend ...... W1BG 16 Police Freqs for the TR-2400 - a sleepless night for the mod squad ...... N9AKX 26 Those Amazing Bobtails - the current-fed connection ...... W1XU 30 Shoot the Moon! - visual tracking for your EME array ...... W9CGI 34 CQ MARS de IC-2A - work new worlds ........
Keywords: antenna; mhz; frequency; amateur; radio; signal; receiver; ham; magazine; amateur radio; toll free; power supply; dummy load; call toll; morse code; residents add; gmt february; british isles; audio filter
Downloads: 3,496
[texts]73 Magazine (May 1979)
73 Magazine May 1979 (#224) CB to 10 - part XVIII: several PLL rigs ...... K9PS 30 PROM IDer for Longer Callsigns - don't be caught short ...... W4VGZ 34 The W7GAQ Key Collection - 250 museum masterpieces ...... K7NZA 38 Proper FM Transceiver Adjustment - good club project ...... VE3AVY 44 Dual-Band Smokey Detector - Super Scooper does it all ...... W1SNN 48 The DXer's Secret Weapon - costs you nothing ........
Keywords: mhz; amateur; radio; kit; frequency; antenna; repeater; power; model; amateur radio; radio club; toll free; power supply; ham radio; call toll; front panel; versa tuner; annual hamfest
Downloads: 4,803
[texts]73 Magazine (August 1992)
73 Magazine August 1992 (#383) The ViewPort VGA Color SSTV System - At last- a versatile slow-scan TV program and interface for the IBM PC ...... KA2PYJ 8 The Compact-A-Loop Antenna - 80 meters for the apartment dweller ...... G2BZQ 18 ATV Transmitter, Part I - Get on ATV easily and cheaply ...... K2MQJ, KA2CWL 22 The Explorer - HF receiver for 40 and 80 meters ...... K5WMS 30 Digital ALC - A simple way to get the best out of any transmitter ......N7APE 36 A Frequency Counter Upgrade - Accuracy ...
Keywords: amateur; mhz; radio; antenna; ihe; frequency; fax; audio; ham; amateur radio; radio today; power supply; feedback card; ham radio; antenna tuner; radio shack; ground plane
Downloads: 2,412
[texts]73 Magazine (December 1991)
73 Magazine December 1991 (#375) The Simple TX TX - The perfect companion for the SupeRX receiver! ...... WA6IVC 10 Project INSPIRE: A Space Shuttle Experiment - Build a simple receiver to explore the wonders of the 60,000 meter band! ...... KG6EK 22 The QUAG-V - A high performance and wide bandwidth antenna for VHF and UHF ...... WB3AYW 36 Computerized Tuning for Ramsey Receiver Kits - It doesn't have to be expensive ........
Keywords: amateur; radio; mhz; antenna; frequency; ham; repeater; receiver; amateur radio; radio today; power supply; feedback card; ham radio; high speed; call call
Downloads: 3,863
[texts]73 Magazine (January 1976)
73 Magazine January 1976 (#183) Clocks -Really Simplified! ...... WB2NEL 22 De-Strain Your Ham-M ...... K6BW 26 Hot Carbon ...... W1BNN 28 An Automatic Dialer for the Deluxe Mobile ...... WA4SAM 49 Zapping Dead Nicads to Life ...... K20AW 62 Plugboard Extender for Under $3.00 ...... W3WTO 65 Eyes For Your Shack ...... W0ACR 66 Build This Digital Capacity Meter ...... Chladek 70 The Computer QSO Machine ........
Keywords: circuit; mhz; frequency; input; kit; power; output; khz; mailable; voltage; power supply; amateur radio; front panel; circuit board; printed circuit; ham radio; rear panel; time base; master charge; mar mar
Downloads: 2,874
[texts]73 Magazine (December 1989)
73 Magazine December 1989 (#351) VOX for HTs - No-hands hand-held hamming ...... KA8HML 9 Two Meter Mobile Rig - Sick of anemic HT mobile operation? Pep up your handie with this booster ...... N8KDD 22 Poor Boy Satellite Station - Coat hanger + SO-239 connector = Mode A uplink antenna! ...... N5LKJ 24 Color SSTV for the Atari ST, Part I -Fast and easy way to get on this fascinating mode ...... WB2OSZ 38 Yaesu FT-470 2m/70cm HT - Two meters and 70cm in a micro-sized hand-held ........
Keywords: amateur; radio; antenna; ham; mhz; repeater; frequency; yaesu; band; amateur radio; feedback card; power supply; ham radio; front panel; dual band; watts output; packet radio
Downloads: 2,943
[texts]73 Magazine (December 2002)
73 Magazine December 2002 (#505) Commercial-Quality Function Generator - Will you outlive it -or vice versa? ...... K8IHO 10 Shedding Some Light on Dimmers - Why not put one of these triacs to use? ...... W2GOM/7 22 Eager for Meager - Try an 11m vertical on 160 ...... AD1B 24 Shack Switch for Foot Fetishists - Not that it's That kinky ...... WA2OKZ 27 Ashore at Sacrifice Rock! - The saga of a masterful DXpedition ........
Keywords: radio; frequency; amateur; antenna; mhz; ihe; thai; cap; december; amateur radio; radio today; web site; time base; radio book; book shop; ham radio; power supply; cal res; three boats
Downloads: 10,236 5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars(1 review)
[texts]73 Magazine (March 2001)
73 Magazine March 2001 (#484) Way Cool Rocket Project: Part 2 - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 10 Build Yourself an NVIS - If you want to talk to the guy in the next county on HF, of course ...... VE2EQL 18 Inside Digital TV/VCR Tuners - Part 7: Conclusion ...... W6WTU 19 Build This Variable AC Bench Supply - If you can find a Variac transformer, that is ........
Keywords: radio; antenna; amateur; ham; qrp; transmitter; kit; mhz; receiver; amateur radio; radio today; web site; ham radio; nose cone; elevation bearing; matching case; high power; bearing box; radio shack
Downloads: 3,364
[texts]73 Magazine (July 1982)
73 Magazine July 1982 (#262) Log of the Colorado Queen - wet, wild Field Day fun ...... K3PUR 12 CB to CW? - converting the Hy-Gain board ...... W1BG 18 Hands Across the Water - CW lives on historic Cape Cod ...... KAID 38 A Three-Piece CP - battery not included ...... WB5WAF 46 Coherent CW for VHF - will it work? ...... W3QVC, VE3DPB 48 Electric Health via Negative Ions - combating an invisible menace ........
Keywords: mhz; amateur; antenna; frequency; radio; power; magazine; receiver; circuit; amateur radio; power supply; toll free; radio club; call toll; circuit board; south africa; qsl cards; morse code; front panel
Downloads: 3,144
[texts]73 Magazine (December 1979)
73 Magazine December 1979 (#231) New Product: Swan's Astro 150 SSB Transceiver ...... WB8BTH 32 Low-Cost Receiver for Satellite TV - this modular design uses readily available technology ...... N6TX 38 A Simple 2m/10m Crossband Repeater System - work the world with an HT! ...... K9EID 44 Audio Booster for Mil-Surplus Receivers - a must for headphone haters ...... McClellan 50 Working with FETs - part II : experiments with gain and supply voltage ........
Keywords: mhz; frequency; amateur; antenna; output; circuit; power; audio; radio; amateur radio; power supply; ground rod; ham radio; toll free; square wave; prices subject; printed circuit; master charge; call toll
Downloads: 4,059
[texts]73 Magazine (January 2001)
73 Magazine January 2001 (#482) SV8 from the Geranium - Mykonos is a great DXpedition - once you get there ...... G3SWH 10 Inside Digital TV/VCR Tuners - Part 5: Decimal-to-binary conversion program ...... W6WTU 14 Transistor Bias: The Secret Story - Shore up some of your shaky transistor theory by taking this tutorial ...... W2GOM/7 18 ATV 23cm FM Receiver - Kiwi TV- Part 1: New Zealand-style ........
Keywords: radio; amateur; antenna; frequency; mfj; mhz; ham; digital; receiver; meters; amateur radio; radio today; web site; ham radio; power supply; digital port; drain current; nice qsl; radio club; heavy duty
Downloads: 2,904
[texts]73 Magazine (May 1972)
73 Magazine May 1972 (#140) SSTV Monitor - Built from a kit ...... WA4VAF 17 6 Meter Mobile Transmitter - 40 watts of FM ...... Martens 21 Quick Band Change Mobile Antenna - With output indicator ...... W4LLR 27 Audio IC - For modulators, receivers, etc ...... K1CLL 32 73 Tests the Larsen Antenna - Very effective 5/8 wave mobile FM antenna ...... W2NSD/l 36 How to Get the Stuff into the House - Sneakily ........
Keywords: amateur; frequency; antenna; radio; output; signal; mhz; input; noise; repeater; amateur radio; slow scan; power supply; ham radio; study guide; radio astronomy; vertical sync; radio club; noise level; army mars
Downloads: 2,260
[texts]73 Magazine (September 1980)
73 Magazine September 1980 (#240) In Profile: Dick Bash KL7IHP - the father of The Final Exam speaks out ...... N1AUI 40 That Mysterious Mode: 10 FM - an examination of propagation phenomena ...... WB2EQG 44 The World Above 430 - part II: next stop, 1296 ...... W9CGI 52 Bridge Over Troubled Audio - another method for driving speakers ...... K4IPV 56 Load a Lawn Chair - even if you can't carry a tune, you can build this matchbox ........
Keywords: mhz; output; frequency; antenna; power; signal; amateur; audio; kit; input; amateur radio; power supply; ham radio; toll free; gmt september; radio club; heavy duty; front panel; versa tuner; output power
Downloads: 3,251
[texts]73 Magazine (May 1982)
73 Magazine May 1982 (#260) Pacific Odyssey - the Kingman/Palmyra adventure ...... KB7NW 12 Top-Notch for Top Band - super antennas for 160 ...... N3BEK 26 The Fun-Amp - 20 Watts out ...... WA0RBR 32 The CCD Antenna Revisited - does it measure up on 40m? ...... W4ANL 40 Antenna-Raising: The Good-Neighbor Policy - sidestepping civil war ...... AK5Q/4 42 'Lite Receiver IV - part I: building it is a breeze ........
Keywords: antenna; amateur; mhz; radio; magazine; tor; power; frequency; pth; amateur radio; power supply; toll free; radio club; money order; weather satellite; call toll; residents add
Downloads: 6,633 (2 reviews)
[texts]73 Magazine (October 1977)
73 Magazine October 1977 (#205) Communicate On 10.25 GHz - with a simple transceiver ...... WA3ETD 26 Home Brew Tilt-Over - the water pipe special ...... W4MEA 30 Minimize Feedline Loss - UHF buffs, front end center! ...... W2STM 32 How About 6 FM? - it's easy with a modified HE-50 ...... W3KBM 34 W.A.S. -Easily! - catching the last few ...... W7FGD 38 Fool the Wire Wizard - a computer would have helped ........
Keywords: mhz; frequency; antenna; output; power; amateur; kit; meter; radio; circuit; amateur radio; tufts radio; power supply; mystic avenue; radio electronics; power output; barrel kit; circuit board; low power; master charge
Downloads: 3,926
[texts]73 Magazine (January 1966)
73 Magazine January 1966 (#64) The Space Monitor - Now, here's a real construction project ...... W9DUT, W9JFW 6 A Unijunction Keyer - Build a modern keyer for less than $20 ...... WA6TSA 12 Two-Element 20m Vertical Array - Get 3 dB gain and 15 dB front-to-back ratio ...... W6TKA 16 They Said It Couldn't Be Done - What? A female build a rig? ...... WA2YTK 18 Simplified RF Measurements - Measure impedance and power easily ........
Keywords: meter; amateur; antenna; receiver; oscillator; circuit; power; transistor; output; radio; amateur radio; front panel; power company; noise figure; power supply; signal generator; local oscillator; field strength; crystal lattice; balanced modulator
Downloads: 2,407
[texts]73 Magazine (May 1993)
73 Magazine May 1993 (#392) The Hows and Whys of Coaxial Cable - How to select the most appropriate kind for your need ...... WB2WIK/6 10 An Almost Everything Amplifier - Change from 7 MHz to 225 MHz with no bandswitching or tuning! ...... AA4AW 20 An Experimenter's Power Supply - An adaptable multi-voltage supply ...... KF9GX, Reimers 30 Electronic Project Panel Labels - Let your computer help ........
Keywords: radio; amateur; mhz; antenna; power; frequency; ham; amateur radio; radio today; feedback card; power supply; ham radio; radio shack; coaxial cable; power supplies
Downloads: 2,849
[texts]73 Magazine (October 1978)
73 Magazine October 1978 (#217) DXpeditioning - a "how to" guide ...... WA2VMS 26 VHF On Your Frequency Counter - an easy-to-build prescaler ...... WB0KLH 34 The KM1CC Story - hams celebrate Marconi's miracle ...... WA1JWD 38 Good News! - easy autoranging for your counter ...... Lassagne 44 Mighty Mods for the 820S - more power and convenience ...... K4FK, WA4KIL 48 Improving Heath's HT - a hall-dozen swell mods ........
Keywords: mhz; frequency; amateur; antenna; output; radio; meter; power; model; switch; amateur radio; power supply; front panel; toll free; radio club; watts pep; tufts radio; radio electronics; frequency range; residents add
Downloads: 3,045
[texts]73 Magazine (November 1972)
73 Magazine November 1972 (#146) The Traveling Ham ...... G3ZCZ/W3 5 Solid State Power ...... W6EI 15 TTL SELCAL for RTTY ...... W9ZTK 20 An IC TRF Receiver ...... W6DNS 29 The Mark II Electronic Keyer ...... W6JJI Emergency Power for home QTH ...... WA8OIK 37 High Power Mobile ...... W9NTP 42 220 MHZ Front End Using FETS ...... K1CLL 45 Double Delta Antenna ...... W2EEY 52 FMP Review ...... Staff 57 A Simple Converter for Beginners ........
Keywords: mhz; output; frequency; amateur; antenna; repeater; power; meter; circuit; input; amateur radio; power supply; repeater station; radio amateurs; remote control; auxiliary link; printed circuit; mhz band; high power; control circuits
Downloads: 2,939
[texts]73 Magazine (November 1994)
73 Magazine November 1994 (#410) An Average and Peak Reading RF Power Meter - Add this handy monitor to your operating table ...... K4GOK 10 440-450 MHz Omnidirectional Antenna - Build this UHF base or repeater antenna for less than 10 bucks! ...... KA0NAN 22 Adapting Bell 202 Telephone Modems for Packet - Enjoy packet radio with this bargain basement project! ...... KI5PG 42 The Kenwood TS-60S - 50 MHz all-mode transceiver ........
Keywords: antenna; radio; amateur; mhz; frequency; meter; repeater; ham; power; amateur radio; radio today; ham radio; feedback card; morse code; case set; power supply; pvc pipe
Downloads: 2,410
[texts]73 Magazine (October 1992)
73 Magazine October 1992 (#385) Packet on the Mac - Connect with the world without a TNC ...... KD6CMT 8 A 2 Meter FET Amplifier for Your Handheld - Build this simple, inexpensive amplifier ...... AA4AW 20 A New Look at Loop Antennas - Adding regeneration to ferrite-core and open-wire box loops ...... W2IMB 28 Baby Loopy - A half-wave, inductively-loaded loop ...... NH6XK 34 Noise Reduction Using Broadband Active Whip Antennas - Clear reception for the VLF/LF bands ........
Keywords: radio; amateur; antenna; mhz; ihe; packet; ham; power; meter; amateur radio; radio today; feedback card; packet radio; ham radio; power supply; circuit board; serial port
Downloads: 3,810
[texts]73 Magazine (June 1974)
73 Magazine June 1974 (#165) Poor Man's Quad - The Adventures of George, The Antenna Maker ...... W6SUN 17 Reconciling the Long Squared Quad - Developing a new type antenna ...... W4KAE 27 Antenna Load Indicator - Whoops, there goes another swisher! ...... W5JJ Matching - The poor little match girl and her coathanger ...... WB2PAP 37 Remotely Tunable Antenna Coupler - Watch out, Johnson ...... W2EEY 45 A Practical Ground System for 160 - Makes a difference! ........
Keywords: antenna; mhz; power; dip; amp; meter; dual; repeater; amateur; voltage; power supply; reflected power; amateur radio; meter beam; water pipe; slow scan; liquid crystal; voltage regulator; radio club; dual band
Downloads: 2,513
[texts]73 Magazine (May 1991)
73 Magazine May 1991 (#368) The Copperhead Keyer Paddle - The perfect touch! ...... KI5AZ 9 The Handy Inductance Bridge - For measuring small coils ...... KB4ZGC 11 The Mini-Keyer - A smaller and newer version of an old friend ...... WB9YBM 14 Covert Hamming - A design for your next secret mission ...... K6BRP 21 Software for the HamShack, Part I - Useful ham calculations you can program yourself! ........
Keywords: radio; amateur; mhz; antenna; ham; frequency; meter; amateur radio; radio today; feedback card; ham radio; power supply; card circle; radio shack; morse code
Downloads: 2,417
[texts]73 Magazine (May 1977)
73 Magazine May 1977 (#200) Build the World's Simplest Keyer - uses 555 timers ...... Ring 46 Stop That Autostart - mods for the ST-6 circuit ...... WA5EVH 47 Predict the Weather! - a complete satellite receiver ...... WB8DQT 48 Learn A New Language - try CW ...... WB0KTH 52 The History of Ham Radio - part III ...... W9CI 54 The Oily Resistor Watteter - how to put 20 W into a 1 W resistor ...... WA1PDY 57 SSTV Slalom Game - you don't need a sports car ........
Keywords: mhz; amateur; kit; frequency; power; radio; antenna; output; khz; crystal; amateur radio; power supply; barrel kit; ham radio; low power; front panel; time base; power switch; circuit board; barrel hit
Downloads: 2,826
[texts]73 Magazine (June 1979)
73 Magazine June 1979 (#225) Add Digital Display for $50 - 100-Hz accuracy ...... K4IQJ 28 High-Performance Receiver Add-Ons - aren't ICs wonderful? ...... W5DA 32 A Solution to the Home-Brew Housing Shortage - building a box for your next project ...... W0IHI 38 How Do You Use ICs? - part XI ...... WA2SUT/NNN0ZVB 42 Customize Your HT144B - some nifty mods ...... W2KGV 46 Ultra-Simple CMOS Logic Probe - a single IC does it all ........
Keywords: amateur; radio; mhz; power; frequency; antenna; circuit; electronics; kit; amateur radio; power supply; front panel; toll free; call toll; radio club; circuit board; printed circuit; ham radio
Downloads: 3,858
[texts]73 Magazine (September 1981)
73 Magazine September 1981 (#252) 10,000 Contacts from Easter Island - four Minnesotans make a dream come true ...... K4ESQ 12 A Very "Special" Weekend - hams help New York's Special Olympics run smoothly ...... WB2CMB 22 Getting Ready for the Real Thing - emergency preparedness that works ...... WA3REY 26 Review: The FRG-7700 General-Coverage Receiver - a first-rate rig for the shortwave bands ........
Keywords: radio; amateur; mhz; antenna; ham; magazine; frequency; code; hams; amateur radio; power supply; ham radio; radio club; toll free; gmt september; morse code; call toll; residents add; easter island
Downloads: 2,651
[texts]73 Magazine (July 1987)
73 Magazine July 1987 (#322) The National Championships - Finally, there's a contest where the "Little Gun" has a chance, where guile wins out over gigawatts ...... KE7C 30 The Two-Meter Transverter Project - Build this VMOS transverter and use all of your Kenwood TS-940's bells and whistles -on two meters! ...... W6YUY 32 Big Time Packet - With the help of a mainframe computer, KITE can control a packet station from his desk -or from around the world ........
Keywords: amateur; radio; mhz; antenna; ham; power; frequency; amateur radio; ham radio; power supply; phone remote; base station; battery pack; power supplies; power output
Downloads: 2,975
[texts]73 Magazine (August 2000)
73 Magazine August 2000 (#477) Really PIC Key, PIC Key - Add memory functions to your PIC Keyer project ...... UY5DJ 10 10m Junk Box Amp - More tube-type fun! ...... K4CRS 16 Vaya Con (Ra)Dios - The radio amateurs of Spain - part 2: Mallorca and a side trip to the Principality of Andorra ...... WB2AQC 19 Cold Fusion, Hot Speculation - OK, experimenters, get ready to do this on your kitchen table ........
Keywords: radio; amateur; antenna; program; ham; meters; august; mhz; amateur radio; thai; front panel; crystal oscillator; radio today; morse code; web site; junk box; photo diode; ham radio; ttl crystal
Downloads: 2,721
[texts]73 Magazine (April 1994)
73 Magazine April 1994 (#403) Motorcycle Mobile! - Take ham radio two-wheeling ...... KC6QJB 10 The 40 Meter Full-Wave Horizontal Loop - Take your signal to the treetops ...... NH6XK 14 The Big Kahuna - A 15' high, 160 meter Distributed Capacity Twisted Loop Antenna ...... WA6QBU 20 A Sensitive Bandspread SWL Receiver - Aaah, the nostalgic smell of dust burning off tubes! ...... XE2/KB6EPO 32 A 2 Meter Half-Kilowatt for $1 per Watt - Build this VHF amp using vacuum-tube technology! ........
Keywords: radio; antenna; amateur; mhz; power; meter; ham; ihe; antennas; amateur radio; radio today; ham radio; power supply; flea market; packet radio; feedback card; case set
Downloads: 3,567
[texts]73 Magazine (August 1982)
73 Magazine August 1982 (#263) Poor Man's Spectrum Analyzer - another 73 breakthrough ...... WB5IPM 10 The AC4YN Story - a Tibetan adventure, circa 1936-1937 ...... G5YN 32 "Smart" Squelch for SSB ...... W9MKV, W9YAN 44 The Ultimate Fuse - ac overload protection ...... W2OLU 52 Multi-Purpose Peak Adapter - don't settle for being average ...... K9EUI 54 The $100 TVRO Receiver - Satellite Central, part VIII ........
Keywords: mhz; frequency; amateur; antenna; output; power; radio; voltage; input; meter; amateur radio; power supply; toll free; circuit board; log amplifier; spectrum analyzer; radio club; dual trace; money order
Downloads: 4,852
[texts]73 Magazine (December 1978)
73 Magazine December 1978 (#219) A DXer's Dream Vacation - try sunny Montserrat ...... WB6JPZ 30 Close Encounters - the eyes of Texans are upon them ...... K8NQN 36 The Schizophrenic Triangle - a split-personality radiator ...... WA4JTJ 44 From CW to Computers - a digital modulation primer ...... N6RY 48 A 28 Cent Touchtone Mod - something for (almost) nothing ...... W9CGI 56 Space Age Surplus - your own Saturn V? ........
Keywords: antenna; mhz; amateur; frequency; output; meter; radio; swr; circuit; amateur radio; power supply; ham radio; nov nov; toll free; sep sep; oct oct; feb feb; jan jan; jul jul
Downloads: 3,742
[texts]73 Magazine (March 1987)
73 Magazine March 1987 (#318) 40 Meters In A Nutshell - This clever 7-MHz transceiver slips right into your pocket (you may have to enlarge your pockets a bit) ...... KG5B 26 C-64 Slow Scan - Use your Commodore for something other than playing Space Potatoes -explore the exciting world of slow-scan television ...... WB9LYH 34 The Calibrated Drake - Avoid FCC pink slips with this simple calibrator for your Drake 2-line ........
Keywords: amateur; radio; mhz; repeater; antenna; lda; icom; receiver; sta; amateur radio; power supply; feedback card; flea market; sta porta; front panel; packet radio; ham radio; sta portb
Downloads: 3,063
[texts]73 Magazine (April 1983)
73 Magazine April 1983 (#271) Pedal Power: A Perfect Field-Day Generator - This bicycle-driven power source is easy to build and guaranteed to get you in shape. No heavy breathing into the mike, please ...... KN6H 12 No-Crash Autopatch - Dialing and driving don't mix. Build this autodialer and let its fingers do the walking-not yours ...... W3ZC 20 Turn Mobile-Rig Whine into a Whimper - From brute-force filtering to solid-state regulation, K4AJQ has the answers to mobile noise ........
Keywords: amateur; radio; mhz; antenna; ihe; tor; power; magazine; ham; kit; amateur radio; toll free; power supply; ham radio; front panel; money order; hong kong; radio club; flea market; frequency range
Downloads: 3,143
[texts]73 Magazine (July 1976)
73 Magazine July 1976 (#189) Handy Dandy Soldering Iron Cooler Offer ...... WB4FDQ 18 Perfect CW - drive 'em crazy with the Keycoder I ...... WA9VGS 20 The Mini-Mite All-band QRP Rig - runs a mighty seven Watts ...... WA7SCB 30 A Fun Counter Project - an invaluable test instrument for under $50? ...... Plavcan 36 Build a FAX from Scratch - then get satellite pictures and other things ...... W4NK 44 Der Repeatermeister - repeater control, with ID ........
Keywords: output; power; circuit; kit; antenna; mhz; clock; pin; amateur; frequency; power supply; amateur radio; flip flop; barrel nit; front panel; telephone calls; coast guard; radio club; barrel kit; matching network
Downloads: 2,610
[texts]73 Magazine (February 1985)
73 Magazine February 1985 (#293) VIC RTTY Resource - Is your VIC-20 ready for RTTY? Make it happen with N5ALE's foolproof software! ...... N5ALE 12 Satellite Supremacy - Sometimes 15 Watts just doesn't cut it with OSCAR 10. The solution? Use W2GEF's 60-Watt uplink amp-stripline construction makes building it a snap! ...... W2GEF 18 CB to Six - Why stop at 10 meters? KB5LF's Hy-Gain conversion will take you to VHF just as easily ........
Keywords: antenna; mhz; amateur; frequency; radio; ihe; receiver; ham; amateur radio; transmitter; power supply; utc february; smart patch; turn control; ham radio; private patch; signal generator
Downloads: 2,704
[texts]73 Magazine (February 1997)
73 Magazine February 1997 (#437) Amateur Radio and Linux - Software home-brewing is here! ...... W9IF 10 Elegant Rotating Revisited - An enhanced Beam-aiming circuit ...... W1ZZB 17 Antenna Tuners - Do we really need them? ...... W6YBT 21 The Topbander - A cheap and easy antenna tuner for 160 meters ...... W8ND 23 Build The Turbo Digi-Sniffer - A simple-to-make digital field strength meter ...... AH2HR/5 26 Sumas Mountain High - Building a self-sufficient repeater tower on a British Colombian mo...
Keywords: radio; antenna; amateur; power; circuit; meter; ham; linux; antennas; amateur radio; radio today; power supply; feedback card; gel cell; ham radio; radio shack; morse code
Downloads: 2,578
[texts]73 Magazine (September 1982)
73 Magazine September 1982 (#264) Micro Modem - a RTTY TU designed for computers ...... WA4CKQ 10 F1 for the Hot Water 101 -all the way with FSK! ...... K0JH 20 No-Frills RTTY - $2OO and you're on the air ...... WA4STO 24 Incredibly Simple RTTY - receive it on your TRS-40 ...... WQXI 28 The RTTY/Tri-bander Marriage - enjoy the 100% duty cycle ...... K0ARC 32 Confessions of a Counter Evolutionary - part II ........
Keywords: output; antenna; mhz; rtty; amateur; input; frequency; radio; magazine; power; amateur radio; power supply; toll free; flea market; gmt september; weather satellite; radio club; ham radio; residents add; qso party
Downloads: 5,115
[texts]73 Magazine (June 1990)
73 Magazine June 1990 (#357) The Field Day Special The "Ray Gun" - A concentric combo Mode B antenna ...... KA5DNP 10 TNC Connect Alarm - Did anyone call while I was out? ...... DA1AU/WB9EGA 14 COSIN: The COmputer Student Information Network - High school credits for ham radio ...... WB2MIC 18 Big But Cheap! - Put a big signal on 40 meters for under $20 ...... K1NIT 22 Two Meter Portable Quad - Sturdy, easy to build ........
Keywords: radio; amateur; antenna; ham; mhz; ihe; hams; fcc; icom; kit; amateur radio; ham radio; feedback card; field day; magnetic field; power supply; customer service
Downloads: 2,624
[texts]73 Magazine (April 1984)
73 Magazine April 1984 (#283) Doing It At Dayton - This unofficial Hamvention handbook helps attendees and dreamers alike ...... WA4BPI 10 Me and My Stupid Old PMOS Converter - At last, there's an easy way to get -12V from a +5-V power supply. Who said "trial and error"? ...... WB1HKU/6 14 Watch That Signal! -Haul out your old oscilloscope and turn it into a signal monitor. The conversion is easy and the price is right ........
Keywords: radio; filter; amateur; frequency; antenna; mhz; output; ham; magazine; radio shack; amateur radio; power supply; flea market; radio club; toll free; terminal unit; front panel; frequency range; ttl output
Downloads: 4,070
[texts]73 Magazine (July 1978)
73 Magazine July 1978 (#214) Enjoy All Five Bands - with this novice no-trap antenna ...... W8FX/4 32 Reincarnating Old Test Equipment - a 1942 capacitance meter is born again ...... W3BM 40 Finding Radio Pests - basics ...... WA1UUK 42 Video Magic For Your Home - to make boredom disappear ...... K4TWJ 44 Novice Guide To Phased Antennas - part II ...... W8HXR 48 Can A $20 FM Rig Work! - testing the VHF Engineering TX150 2m xmtr ........
Keywords: amateur; frequency; repeater; mhz; antenna; output; meter; radio; input; power; amateur radio; power supply; call signs; call sign; repeater operation; technician class; frequency select; toll free; test equipment; front panel
Downloads: 2,678
[texts]73 Magazine (November 1982)
73 Magazine November 1982 (#266) A Perfect "10" - Timer, counter, logic probe - 10 functions in all. That's the Multi-Board One and you can build it ...... WA2BHB 10 Remote Control Your IC-701 - Simpler than commercial controllers, this home-brew circuit nevertheless features push-button band changing and frequency selection scanning, and expanded coverage ...... N2GW 14 Automatic Beam Aimer - Here is the scoop on adding set-and-forget convenience to your rotator control...
Keywords: antenna; output; circuit; mhz; voltage; audio; frequency; magazine; power; power supply; amateur radio; toll free; front panel; circuit board; gmt november; printed circuit; frequency range; fox tango
Downloads: 4,100
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